Intel Xeon 5160 3.0GHz 1333MHz 2x2MB Socket 771 Dual-Core CPU Intel Xeon 5160 3.0 GHz 1333 GHz 4 MB Socket 771 Dual-Core CPU General Features: Intel Xeon Processor 5160 3.0 GHz CPU speed 1333 MHz bus speed 4 MB L2 cache Socket 771 65 nm manufacturing technology B2 core stepping 80W thermal design power Dual-Core Enhanced Intel Speedstep Technology Intel EM64T Intel Virtualization Technology Enhanced Halt State (C1E)